以太坊合约地址的生成方式

目前CreateAddress，以太坊的地址取决于部署合约的人的地址，当前区块链上部署者的nonce（=该部署交易的nonce）。

地址生成函数

// CreateAddress creates an ethereum address given the bytes and the nonce
func CreateAddress(b common.Address, nonce uint64) common.Address {
	data, _ := rlp.EncodeToBytes([]interface{}{b, nonce})
	return common.BytesToAddress(Keccak256(data)[12:])
}

// CreateAddress2 creates an ethereum address given the address bytes, initial
// contract code and a salt.
func CreateAddress2(b common.Address, salt [32]byte, code []byte) common.Address {
	return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt[:], Keccak256(code))[12:])
}

用途

// if the transaction created a contract, store the creation address in the receipt.
	if msg.To() == nil {
		receipt.ContractAddress = crypto.CreateAddress(vmenv.Context.Origin, tx.Nonce())
	}

// Create creates a new contract using code as deployment code.
func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
	contractAddr = crypto.CreateAddress(caller.Address(), evm.StateDB.GetNonce(caller.Address()))
	return evm.create(caller, code, gas, value, contractAddr)
}

// Create2 creates a new contract using code as deployment code.
//
// The different between Create2 with Create is Create2 uses sha3(0xff ++ msg.sender ++ salt ++ sha3(init_code))[12:]
// instead of the usual sender-and-nonce-hash as the address where the contract is initialized at.
func (evm *EVM) Create2(caller ContractRef, code []byte, gas uint64, endowment *big.Int, salt *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
	contractAddr = crypto.CreateAddress2(caller.Address(), common.BigToHash(salt), code)
	return evm.create(caller, code, gas, endowment, contractAddr)
}

其他